WO2020134261A1 - Procédés et dispositifs permettant de fonctionner avec une connectivité double - Google Patents

Procédés et dispositifs permettant de fonctionner avec une connectivité double Download PDF

Info

Publication number
WO2020134261A1
WO2020134261A1 PCT/CN2019/108624 CN2019108624W WO2020134261A1 WO 2020134261 A1 WO2020134261 A1 WO 2020134261A1 CN 2019108624 W CN2019108624 W CN 2019108624W WO 2020134261 A1 WO2020134261 A1 WO 2020134261A1
Authority
WO
WIPO (PCT)
Prior art keywords
network device
lbt
secondary network
master
threshold
Prior art date
Application number
PCT/CN2019/108624
Other languages
English (en)
Inventor
Jinhua Liu
Min Wang
Original Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
Jinhua Liu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget Lm Ericsson (Publ), Jinhua Liu filed Critical Telefonaktiebolaget Lm Ericsson (Publ)
Priority to US17/416,659 priority Critical patent/US20220053502A1/en
Priority to EP19901819.3A priority patent/EP3903530A4/fr
Publication of WO2020134261A1 publication Critical patent/WO2020134261A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H04W28/082—Load balancing or load distribution among bearers or channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H04W28/0858—Load balancing or load distribution among entities in the uplink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0278—Traffic management, e.g. flow control or congestion control using buffer status reports

Definitions

  • Figs. 1A and 1B shows examples of split bearers.
  • a UE 110 has dual connectivity with an MeNB 120 and an SeNB 130.
  • the UE 110 has a PDCP buffer 112 and the ul-DataSplitThreshold is denoted by a dashed line.
  • the amount of data in the buffer 112 is larger than the threshold and thus the UE 110 splits the data for transmitting to the MeNB 120 and the SeNB 130.
  • Fig. 1 B the amount of data in the buffer 112 is smaller than the threshold and thus the UE 110 transmits the data to the MeNB 120 only (or alternatively the SeNB 130 only when ul-DataSplitDRB-ViaSCG is set) .
  • a method in a terminal device having DC with a master network device and a secondary network device includes: detecting a Buffer Status Report (BSR) triggering event associated with a Medium Access Control (MAC) entity connected to the master network device or a MAC entity connected to the secondary network device; and transmitting, by the MAC entity with which the BSR triggering event is associated, a BSR indicating buffer statuses for all Logic Channel Groups (LCGs) associated with both MAC entities.
  • BSR Buffer Status Report
  • MAC Medium Access Control
  • a method in a terminal device having DC with a master network device and a secondary network device includes: detecting an LBT failure condition or a channel occupancy condition associated with a connection to the secondary network device; and transmitting uplink information associated with the secondary network device to the master network device in response to the LBT failure condition or the channel occupancy condition.
  • the uplink information may be transmitted over uplink resources reserved in the master network device.
  • a method in a network device communicative with a terminal device having DC with the network device and another network device includes: receiving from the terminal device a BSR indicating a buffer status associated with a MAC entity connected to the other network device; and forwarding the BSR to the other network device.
  • the uplink information may be received over uplink resources reserved in the master network device.
  • the method may further include, prior to receiving the uplink information: receiving from the terminal device a request for uplink resources; and transmitting to the terminal device a message indicating allocated uplink resources.
  • the uplink information may be received over the allocated uplink resources.
  • the uplink information may include Uplink Control Information (UCI) or Physical Random Access Channel (PRACH) signaling.
  • UCI Uplink Control Information
  • PRACH Physical Random Access Channel
  • a computer readable storage medium has computer program instructions stored thereon.
  • the computer program instructions when executed by a processor in a network device, cause the network device to perform the method according to any of the ninth, tenth, eleventh, twelfth, thirteenth, fourteenth and fifteenth aspects.
  • Fig. 14 is a flowchart illustrating a method for operating with DC according to another embodiment of the present disclosure.
  • terminal device refers to any end device that can access a wireless communication network and receive services therefrom.
  • the terminal device refers to a mobile terminal, user equipment (UE) , or other suitable devices.
  • the UE may be, for example, a Subscriber Station (SS) , a Portable Subscriber Station, a Mobile Station (MS) , or an Access Terminal (AT) .
  • SS Subscriber Station
  • MS Mobile Station
  • AT Access Terminal
  • a terminal device may represent a machine or other device that performs monitoring and/or measurements, and transmits the results of such monitoring and/or measurements to another terminal device and/or network equipment.
  • the terminal device may in this case be a machine-to-machine (M2M) device, which may in a 3GPP context be referred to as a machine-type communication (MTC) device.
  • M2M machine-to-machine
  • MTC machine-type communication
  • the terminal device may be a UE implementing the 3GPP narrow band internet of things (NB-IoT) standard.
  • NB-IoT narrow band internet of things
  • NB-IoT narrow band internet of things
  • a terminal device may represent a vehicle or other equipment that is capable of monitoring and/or reporting on its operational status or other functions associated with its operation.
  • a first cell, to which a connection of a split bearer is mapped, provided by the secondary network device has a first channel occupancy higher than an occupancy threshold, a first LBT failure ratio higher than a failure ratio threshold and/or a first number of consecutive LBT failures larger than a number threshold.
  • Fig. 8 is a flowchart illustrating a method 800 for operating with DC according to an embodiment of the present disclosure.
  • the method 800 can be performed in a network device communicative with a terminal device having DC with the network device, as a master network device, and a secondary network device.
  • the master network device may operate in a licensed band
  • the secondary network device may operate in an unlicensed band.
  • the non-split bearer is remapped to the second cell or the third cell.
  • the split bearer is reconfigured to the non-split bearer or the connection of the split bearer is remapped to the second cell.
  • the uplink information is forwarded to the secondary network device, e.g., via an X2 or Xn interface.
  • a terminal device is provided.
  • Fig. 15 is a block diagram of a terminal device 1500 according to an embodiment of the present disclosure.
  • the terminal device 1500 has DC with a master network device and a secondary network device.
  • the terminal device 1500 includes a unit 1510 configured to determine, for a split bearer, to split data to be transmitted to the master network device and the secondary network device based at least on a channel occupancy and/or LBT statistics associated with a connection to the secondary network device.
  • the terminal device 1500 further includes a unit 1520 configured to split the data for transmitting to the master network device and the secondary network device over the split bearer.
  • the unit 1510 can be configured to: determine a data amount threshold based on the channel occupancy or the LBT statistics; and determine to split the data when an amount of the data, as stored in a buffer, is larger than or equal to the determined data amount threshold.
  • the master network device may operate in a licensed or unlicensed band, and the secondary network device may operate in an unlicensed band.
  • the terminal device 1500 includes a unit 1510 configured to determine that a first cell, to which a non-split bearer is mapped, provided by the secondary network device has a first channel occupancy higher than an occupancy threshold, a first LBT failure ratio higher than a failure ratio threshold and/or a first number of consecutive LBT failures larger than a number threshold.
  • the uplink information may be transmitted over uplink resources reserved in the master network device.
  • the units 1510 ⁇ 1520 can be implemented as a pure hardware solution or as a combination of software and hardware, e.g., by one or more of: a processor or a micro-processor and adequate software and memory for storing of the software, a Programmable Logic Device (PLD) or other electronic component (s) or processing circuitry configured to perform the actions described above, and illustrated, e.g., in Fig. 2, 3, 4, 5, 6 or 7.
  • PLD Programmable Logic Device
  • processing circuitry configured to perform the actions described above, and illustrated, e.g., in Fig. 2, 3, 4, 5, 6 or 7.
  • the network device 1700 is communicative with a terminal device having DC with the network device, as a master network device, and a secondary network device.
  • the network device 1700 includes a unit 1710 configured to receive from the terminal device a request to reconfigure a split bearer having a connection mapped to a first cell provided by the secondary network device, to a non-split bearer or to remap the connection of the split bearer to a second cell provided by the secondary network device.
  • the network device 1700 further includes a unit 1720 configured to reconfigure the split bearer to the non-split bearer or remap the connection of the split bearer to the second cell.
  • the uplink information may be received over uplink resources reserved in the master network device.
  • the network device 1800 is communicative with a terminal device having DC with the network device, as a master network device, and a secondary network device.
  • the network device 1800 includes a transceiver 1810, a processor 1820 and a memory 1830.
  • the memory 1830 contains instructions executable by the processor 1820 whereby the network device 1800 is operative to perform the actions, e.g., of the procedure described earlier in conjunction with Fig. 9.
  • the memory 1830 contains instructions executable by the processor 1820 whereby the network device 1800 is operative to: receive from the terminal device a request to reconfigure a split bearer having a connection mapped to a first cell provided by the secondary network device, to a non-split bearer or to remap the connection of the split bearer to a second cell provided by the secondary network device; and reconfigure the split bearer to the non-split bearer or remap the connection of the split bearer to the second cell.
  • the memory 1830 contains instructions executable by the processor 1820 whereby the network device 1800 is operative to: determine that a first cell, to which a connection of a split bearer is mapped, provided by the secondary network device, has a first channel occupancy higher than an occupancy threshold, a first LBT failure ratio higher than a failure ratio threshold and/or a first number of consecutive LBT failures larger than a number threshold; and reconfigure the split bearer to a non-split bearer or remap the connection of the split bearer to a second cell, having a second channel occupancy lower than the first channel occupancy, a second LBT failure ratio lower than the first LBT failure ratio and/or a second number of consecutive LBT failures smaller than the first number, provided by the secondary network device.
  • the network device may serve as a master network device and the other network device may serve as a secondary network device.
  • the memory 1830 contains instructions executable by the processor 1820 whereby the network device 1800 is operative to: determine, for a split bearer, a configuration for splitting data of an aggregated buffer size between the master network device and the secondary network device based on respective radio channel qualities, channel occupancies and/or LBT statistics associated with respective connections from the terminal device to the master network device and the secondary network device; and signal the configuration to the terminal device.
  • the network device 1800 is communicative with a terminal device having DC with the network device, as a master network device, and a secondary network device.
  • the network device 1800 includes a transceiver 1810, a processor 1820 and a memory 1830.
  • the memory 1830 contains instructions executable by the processor 1820 whereby the network device 1800 is operative to perform the actions, e.g., of the procedure described earlier in conjunction with Fig. 14.
  • the memory 1830 contains instructions executable by the processor 1820 whereby the network device 1800 is operative to: receive from the terminal device uplink information associated with the secondary network device; and forward the uplink information to the secondary network device.
  • the computer program product may be configured as a computer program code structured in computer program modules.
  • the computer program modules could essentially perform the actions of the flow illustrated in Fig. 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 or 14.
  • the communication system of Fig. 19 as a whole enables connectivity between one of the connected UEs 1991, 1992 and the host computer 1930.
  • the connectivity may be described as an over-the-top (OTT) connection 1950.
  • the host computer 1930 and the connected UEs 1991, 1992 are configured to communicate data and/or signaling via the OTT connection 1950, using the access network 1911, the core network 1914, any intermediate network 1920 and possible further infrastructure (not shown) as intermediaries.
  • the OTT connection 1950 may be transparent in the sense that the participating communication devices through which the OTT connection 1950 passes are unaware of routing of uplink and downlink communications.
  • the wireless connection 2070 between the UE 2030 and the base station 2020 is in accordance with the teachings of the embodiments described throughout this disclosure.
  • One or more of the various embodiments improve the performance of OTT services provided to the UE 2030 using the OTT connection 2050, in which the wireless connection 2070 forms the last segment. More precisely, the teachings of these embodiments may improve scheduling latency and thereby provide benefits such as reduced user waiting time.
  • Fig. 24 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment.
  • the communication system includes a host computer, a base station and a UE which may be those described with reference to Figs. 19 and 20. For simplicity of the present disclosure, only drawing references to Fig. 24 will be included in this section.
  • the base station receives user data from the UE.
  • the base station initiates transmission of the received user data to the host computer.
  • the host computer receives the user data carried in the transmission initiated by the base station.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé (200) dans un dispositif terminal ayant une connectivité double, DC, avec un dispositif de réseau maître et un dispositif de réseau secondaire. Le procédé (200) comprend les étapes consistant : à déterminer (210), pour un support divisé, des données divisées devant être transmises au dispositif de réseau maître et au dispositif de réseau secondaire sur la base au moins d'une occupation de canal et/ou de statistiques d'écoute avant de parler, LBT, associées à une connexion au dispositif de réseau secondaire ; et à diviser (220) des données pour la transmission au dispositif de réseau maître et au dispositif de réseau secondaire sur le support divisé.
PCT/CN2019/108624 2018-12-27 2019-09-27 Procédés et dispositifs permettant de fonctionner avec une connectivité double WO2020134261A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US17/416,659 US20220053502A1 (en) 2018-12-27 2019-09-27 Methods and devices for operating with dual connectivity
EP19901819.3A EP3903530A4 (fr) 2018-12-27 2019-09-27 Procédés et dispositifs permettant de fonctionner avec une connectivité double

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2018124453 2018-12-27
CNPCT/CN2018/124453 2018-12-27

Publications (1)

Publication Number Publication Date
WO2020134261A1 true WO2020134261A1 (fr) 2020-07-02

Family

ID=71129576

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/108624 WO2020134261A1 (fr) 2018-12-27 2019-09-27 Procédés et dispositifs permettant de fonctionner avec une connectivité double

Country Status (3)

Country Link
US (1) US20220053502A1 (fr)
EP (1) EP3903530A4 (fr)
WO (1) WO2020134261A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022040651A1 (fr) * 2020-08-18 2022-02-24 Qualcomm Incorporated Réglage de division de données entre des canaux de nouvelle radio et des canaux existants

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11399319B1 (en) * 2020-12-10 2022-07-26 Sprint Spectrum L.P. Controlling secondary-node addition based on cooperative consideration of coverage comparison and predicted data split

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105850204A (zh) * 2013-11-01 2016-08-10 诺基亚技术有限公司 用于在具有双连接的情况下处理缓冲器状态报告和调度请求的方法和装置
CN108282836A (zh) * 2017-01-06 2018-07-13 展讯通信（上海）有限公司 辅基站切换方法、装置及基站

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007531424A (ja) * 2004-03-30 2007-11-01 ユーティー シ ダ カン トン スン ヨウ シアン ゴン シ 集中基地局を使用する移動体通信システムにおけるマイクロセル管理の方法
US9924405B2 (en) * 2013-10-04 2018-03-20 Industrial Technology Research Institute Method for buffer status report in dual connectivity
WO2016105568A1 (fr) * 2014-12-23 2016-06-30 Interdigital Patent Holdings, Inc. Procédés pour une intégration wifi dans des systèmes cellulaires
CN107637121B (zh) * 2015-05-15 2021-04-06 三星电子株式会社 用于在移动通信系统中发送或接收调度请求的方法和装置
EP4132212A3 (fr) * 2017-06-16 2023-06-07 Beijing Xiaomi Mobile Software Co., Ltd. Mise à jour de configuration d'unité distribuée
US10616945B2 (en) * 2018-02-15 2020-04-07 Qualcomm Incorporated Secondary cell group failure handling
WO2019196031A1 (fr) * 2018-04-11 2019-10-17 Zte Corporation Fonctionnement de temporisateur de rejet dans une communication sans fil
CN112956235A (zh) * 2018-10-29 2021-06-11 三星电子株式会社 用于在未授权频段中操作的下一代移动通信系统中执行小区重选的方法和装置
EP3648500A1 (fr) * 2018-10-30 2020-05-06 Panasonic Intellectual Property Corporation of America Mesures en cas de signal de référence manquants

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105850204A (zh) * 2013-11-01 2016-08-10 诺基亚技术有限公司 用于在具有双连接的情况下处理缓冲器状态报告和调度请求的方法和装置
CN108282836A (zh) * 2017-01-06 2018-07-13 展讯通信（上海）有限公司 辅基站切换方法、装置及基站

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
SAMSUNG: "3GPP TSG-RAN WG3 NR AdHoc，R3-172235", SCG SPLIT BEARER SUPPORT IN OPTION 3, 29 June 2017 (2017-06-29), XP051302181, DOI: 20191212213803 *
See also references of EP3903530A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022040651A1 (fr) * 2020-08-18 2022-02-24 Qualcomm Incorporated Réglage de division de données entre des canaux de nouvelle radio et des canaux existants

Also Published As

Publication number Publication date
EP3903530A1 (fr) 2021-11-03
US20220053502A1 (en) 2022-02-17
EP3903530A4 (fr) 2023-03-15

Similar Documents

Publication Publication Date Title
US11974246B2 (en) Method, terminal device and network device for time advance adjustment
US20230361846A1 (en) Methods and devices for beam failure recovery
US11889342B2 (en) Method and apparatus for quality of service management
US20220417777A1 (en) Terminal Device, Network Device and Methods Therein
WO2021004085A1 (fr) Procédés et dispositifs de communication sans fil
CN114586318B (zh) 使用波束成形进行数据传输的网络节点、终端设备及其中的方法
WO2020114058A1 (fr) Procédé et appareil permettant une amélioration d'un rapport d'état de mémoire tampon
WO2020134261A1 (fr) Procédés et dispositifs permettant de fonctionner avec une connectivité double
US20240121666A1 (en) Method and apparatus for flow control
US20230041235A1 (en) Network device and method therein
US11968666B2 (en) Method and network node for coordination of configured scheduling
US20210400711A1 (en) Methods, radio nodes and computer readable media for enhanced grant skipping
US20220150916A1 (en) Method and apparatus for data transmission and computer readable medium
WO2021023181A1 (fr) Dispositif terminal, noeud de réseau et procédé destiné à faciliter la transmission de canaux logiques sur une liaison latérale
WO2020237526A1 (fr) Procédé, dispositif de réseau et nœud de réseau pour la planification de dispositifs terminaux
WO2020057240A1 (fr) Procédé et appareil pour un contrôle adaptatif de priorité entre des informations de commande et des données utilisateur
WO2021042280A1 (fr) Procédés et dispositifs de communication sans fil
WO2020147069A1 (fr) Dispositif terminal, dispositif de réseau et procédés associés
WO2023110356A1 (fr) Dispositif terminal, nœud de réseau, et procédés en son sein pour la transmission d'informations de synchronisation de liaison latérale
JP2023530619A (ja) マルチキャスト通信のための方法および装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19901819

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2019901819

Country of ref document: EP

Effective date: 20210727